Display apparatus



y 1930- I R. M. CRAIG' 1,768,574

DISPLAY APPARATUS Filed Jan. 7, 1929 au-uc-mto'c KM pawn},

} I elttomw/na J Patented July 1, 1930.

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RICHARD M. CRAIG, 01? SAN ANTONIO, TEXAS, ASSIGNOR To ANIMATEDCOLORADVERJ TISING, INC 013' NEW YORK, N. Y., ACORPORATION OF'NEVADA iDISPLAY APPARATUS Original applicationfiled August 14,

This invention relates to displayapparatus and more particularly to anadvertislng sign of the type disclosed in my Patent No. 1,698,216,issued January 8, 1929, of whlch 5 the present application constitutes adivision.

One object of the invention is to provide a signwhich will be novel andattractive in appearance and hold the attention of an observer for arelatively long length'of time o and thereby serve .very effectively asan vadvertising medium. Y I

Another object of the invention is to provide a sign having an objectpainted thereon against a'background in different positions capable ofbeing assumed by the object and companion lightingmeans consisting ofcolored lights emitting spectral rays having such relation tothe-colorsused upon the sign board that as different colored lights areturned on and oif'the object will appear to change its position.

The invention is illustrated in'the accoman in drawin wherein is shownan em bodiment of the invention including a sign board and lightstogetherwith a circuit for the lights. 1

In the description whichis to follow,

reference will be made to pigment colors and by this term are meantcolored pigments or the colors in which the images are represented onthe display surface. Where refer,- V

ence is made to spectral colors, such reference applies to" colors ofthe spectrum as represented by colored light rays. Refer; ence will alsobe made to jineutral colors,

which I employ as backgrounds, and by neutral colors I mean such as donot materially change under the spectral colors by which the imagesaredisplayed or, inother 7 mary colored light rays.

The drawing illustrates one embodiment of the invention and inthis'embodiment the display surface is indicated by thenumeral 33 andhas dark neutral background areas 34 painted thereon and red back-'ground areas35. The representation in this but the image 37 wi'llstaridoutsubstantially white against the background areas 34L," When thesurface is fioo'ded'with. blue light rays, the image *37 'will beobliterated'j and 1925, Serial No. 50,330. Dividedand this applicationfiledJanuary 7, 1929. seiia in, 330,930. 1 i I i ifigureisthat'ofasee-saw or a teeter-totter Vwhichfin one position of itsmovement is illustrated in plain white, as indicated by the numeral 36,the see-saw in this position being represented upon. the red background35. In its other position, the see-saw or teeter-'totter is represented,as at 37, in red upon the dark neutral backgrounds 34. The

stand upon which the see-saw is supported 7 for rocking *mo'vement isrepresented in white, as indicated lby the numeral 38, and

islo cated betweenitwo'xof the background areas- 341- and 35,,it beingjobserved that the areas '34 are diagonallyioppositely located thattheareas 35 are likewise diagonal- "1y oppositelylocated. Redlightfbulbs39 and blue f'bulbs 40,1for other equivalent sourcesof'spectral colored light'are so arrangedwith relation'tothe displaysurface that the same may beflooded withred rays aorwithbluerays, anditpwill be understood that when the surface' is flooded with red lightrays the image 36 will be obliterated the image 36 will standoutsubstantially white against *the then I apparently black background 35.Under both conditions, the I support or pedestal 38 will be. visible. ItI willbe understood, of course, that in this i embodiment of theinventionthe' back grounds 35 might be green and theimage' 37 mightlikewise be green, in which; event the image 37 would stand out underthe blue I light illumination of the display surface", and the image 36would stand out under the i'.

red light illumination'of thesurfacer; Y 7 It is, of course, essentialto employ means for effecting illumination ofthe display j o surfacewhich means will operate automati- P .cally, and inasmuch as there aremany flashring devices which may be employed for this" f,

purpose, I have illustrated in coincie'ctionf with the figure a flasherindicated as a whole by-the reference'lettenA, whichfmaybe a rotary discof insulating:material having concentric series of contact strips B andGupon its face in circuit with a shaft D which ""Q supports the disc forrotation, wires E serving to electrically connect the said contactstrips and the shaft, and a conductor wire F being led from the shaft toone side of a source of current supply indicated by the numeral G. Aconductor wire H leads from the other side of the source of currentsupply and is connected to the sockets for all of theelectric lightbulbs regardless of their distinctive colors. Brushes I and J arearranged to coact respectively with the contact strips B and G, andconductor wires K and L are led respectively from the brushes'I and Jand are connected, one with the other terminal of each socket for alight bulb one one color and the other with the other terminal of thesocket for each light bulb otthe other color. The contact strips y B andC are arranged in staggered relation so that the circuit will besuccessively alternately closed through the bulbs of the two distinctivecolors. 7 7

Having thus described the invention, I

' claim 1 7 Display apparatus comprising a display surface having abackground a portion of the area of which is of a dark neutral color andanother portion of a distinctive pigment color, the first-mentionedareabearing a representation of matter to be displayed in a distinctivepigment color, the a other area bearing similar matter to be displayedand represented in a light neutral color, and means for displaying saidsurface successively in the presence of contrasting spectral colors oneof which corresponds substantially to the first-mentioned repre:sentation in a pigment color and the secondf,

i mentioned background area color, and the iture. 7

other of which is contrasting to the said background-area distinctivepigment color.

In testimony whereof Iafiixmy signa- RICHARD M. CRAIG, a 5.1

